The peeling of white mucous membrane inside the mouth may be caused by oral mold infection and oral lichen planus, which can be treated with mycophenolate, isotretinoin and other medications. 1. oral mold infection: it is caused by decreased resistance, long-term use of antibiotics or poor oral hygiene, etc., there will be a white pseudomembrane inside the oral mucosa, velvety, sometimes the pseudomembrane will fall off, mucosal bleeding, you can take fluconazole, ketoconazole, etc. under the guidance of the doctor or sodium bicarbonate gargle for treatment. 2. Oral lichen planus: is the patient’s nervousness, anxiety, bad habits lead to, there will be small papules, white pattern can be composed of reticulate, dendritic and other forms, white damage to the oral mucosa, epidermal detachment and other symptoms, can be treated with isotretinoin, adrenocorticotropic hormone ointment, etc., under the guidance of a doctor. Inside the mouth white mucous membrane peeling patients usually need to pay attention to a balanced diet, it is recommended that you can go to the hospital to find out the cause of the disease, under the guidance of the doctor’s treatment, the use of drugs need to comply with the doctor’s instructions.